Honda Car Forum

I understand SOMEWHAT of how VTEC works. Can someone explain how much power different it is from VTEC to NON VTEC? Say both engines are exactly the same, but one has VTEC installed. How would power differ? How much stronger would the pull be when the VTEC kicks in? What's the difference between I-VTEC and regular VTEC?Same with the cam question. How does single differ from a dual? how much power difference? (again same engine comparison)Also does single cam and dual make any changes to saving gas or being more fuel effecient?Now what is low end and high end? I hear alot of people talk about it. But still clueless. Is low end refering to torque and acceleration, and high end being horsepower and top speed? Thanks"It does not matter what it is on a Honda. It all equals slow"That's why K20a swaps in hatchs run low 11's stock huh? Imagine a fully tuned one. Single digits done easily for under 6 grand AFTER the swap. The motor runs under 8K.

I'll leave the technical stuff to the folks with more experience, I have no numbers to throw at you.But as far as low end and high end when talking about engine performance people are generally referring to the RPM range. For example, a car with high low end torque would have better launching power since the RPMs are low. Think of old American muscle cars with the big V8 engines.If someone is refering to high end torque, they are usually refering to an engine that runs better at higher RPMs and the torque curve is best at high RPMs.Of course a car may have both high end and low end torque if it's geared right, but that will generally reduce it's top speed, but the best acceleration.